HeroNeo&reg; Needle Threader Insertion Applicator Handle Thread For Sewing Tool Machine Sew This needle thread helps thread the sewing machine needle more easily. First, just place the thread from right to left through the slit in the thread, second, slide the threader down the needle until the pin pushes the thread through the needle eye. It works best with machine needles size 80/12 and larger. There is a tiny hole on the opposite end of the thread, it is for holding the sewing machine needle while you easily insert it into the machine. This needle threader suits any of these sewing machines: Baby Lock; Bernina; Brother; Elna; Euro Pro; Husqvarna Viking; Janome; Kenmore; Pfaff; Simplicity; Singer; Material: Plastic and metal